[C++ 2008] Debugging Project

Hi!
I recently upgraded a project from VS C++ 2003 (could be 2002, don't remember).
So i got a lot of errors on the upgrade which i dont know how to resolve.

I've just started learning C++ and i dont really understand this error.
If someone could help me, i'd really appreciate it!

error:

Quote:

---

error C3867: 'GUI::Form1::notifyIcon_MouseDown': function call missing argument list; use '&GUI::Form1::notifyIcon_MouseDown' to create a pointer to member f:\mina dokument\source code\gui\Form1.h 112 GUI

---

code:

cpp Code:

this->notifyIcon_MouseDown += new System::Windows::Forms::MouseEventHandler(this, notifyIcon_MouseDown)

Thanks in advance!
//Zeelia

The second argument in the MouseEventHandler constructor should be a pointer to the handling method. So it should look like this:

Code:

---

this->notifyIcon_MouseDown += new System::Windows::Forms::MouseEventHandler(this, &GUI::Form1::notifyIcon_MouseDown)

---

Try and see if that works better.

Actually that would have worked indeed so thanks for the reply!
But i noticed that since i upgraded a project from 2003 to 2008, the CLR setting was set to oldSyntax.

So since i want to push this project forward and not stick with all the old programming, i decided to change the setting into CLR (clr), the normal/default setting.

So what i got now is an error with an array, they are too different from 2003 and i just have some problems with converting variables.

cpp Code:

ListViewItem^ item1 = gcnew ListViewItem((String^)msg);
            item1->SubItems->Add((String^)message);
            ListViewItem^ temp1 [] = {item1};
            listView1->Items->AddRange(temp1);

I get this error:
Line 1 - error C2440: 'type cast' : cannot convert from 'char [260]' to 'System::String ^'
Line 2 - error C2440: 'type cast' : cannot convert from 'char *' to 'System::String ^'
Line 3 - error C2728: 'System::Windows::Forms::ListViewItem ^' : a native array cannot contain this managed type
Line 4 - error C2664: 'void System::Windows::Forms::ListView::ListViewItemCollection::AddRange(cli::array<Type,dimension> ^)' : cannot convert parameter 1 from 'System::Windows::Forms::ListViewItem ^[1]' to 'cli::array<Type,dimension> ^'

(Line 4 error was caused by line 3 and note on line 3, its supposed to be [] instead of &91;])

The msg variable is char and the message variable is char*.
The code needs the variables in string. There aren't any .ToString() functions like in Visual Basic haha.

So i really need some help, guys.
Any ideas?
//Zeelia

unmanaged char arrays can not be directly converted to managed strings. You can however create a new String instance and pass the array to it in the constructor:

Code:

---

ListViewItem^ item1 = gcnew ListViewItem(gcnew String(msg));

---

The same thing goes for trying to convert a char* to a String^.

Unmanaged arrays are declared the way you would normally declare an array in C++, namely the way you've done in your code snippet:

Code:

---

int myIntArray[128];

---

However these unmanaged arrays can not hold managed types, and so you need to declare a managed array to hold managed types:

Code:

---

array<ListViewItem^>^ temp1 = {item1};

---

There are ToString methods in the managed extensions for C++ aswell, but not for the unmanaged types such as char[] or char* ;)

Hi Atheist!
Thanks for the significant help!
You've helped me to reduce my errors from 164 to 27. I'm really grateful.

I can't solve all these errors which I have left so i hope you can help me, i have some big problems and some small:

cplus Code:

protected: 
        void Dispose(Boolean disposing)
        {
            if (disposing && components)
            {
                components->Dispose();
            }
            __super::Dispose(disposing);
        }

Line 6: error C2039: 'Dispose' : is not a member of 'System::ComponentModel::Container' f:\mina dokument\gui new_syntax\main1.h
Line 8: error C2794: 'Dispose' : is not a member of any direct or indirect base class of 'GUI_New::main' f:\mina dokument\gui new_syntax\main1.h

~I really dont understand this error, the first error is totally false, Dispose IS a member of the referred class.

cplus Code:

if ( (myStream = saveFileDialog1->OpenFile()) != NULL )

error C2446: '!=' : no conversion from 'int' to 'System::IO::Stream ^' f:\mina dokument\gui new_syntax\main1.h

~Conversion error again... i was thinking about doing the same solution as before (gcnew ~) but i didn't know how or where to write what code.

cplus Code:

before:
                    path = saveFileDialog1->get_FileName();
after:
                    path = saveFileDialog1->FileName();

i tried changing the before into after but without success, i got this error:
error C2064: term does not evaluate to a function taking 0 arguments f:\mina dokument\gui new_syntax\main1.h

i have some more errors but i hope you can help me bring some light to this project.
Thanks!
//Zeelia

The Dispose method(s) of the System::ComponentModel::Container class is virtual, meaning that they are not implemented, but should be implemented in all derived classes. Thats why you can not call its Dispose method.

I cant really say why you're getting the same error on the GUI_New::main class. Does it have a public (or atleast protected) Dispose method that accepts a boolean argument?

NULL is a constant defined as 0, which is why you're getting the error about trying to compare an int with a Stream^. Use the keyword nullptr, which is the NULL equivalent for the managed extensions, instead of NULL.

SaveFileDialog->FileName is a property. Two parentheses after a member name denotes a call, and properties can not be called. Just remove the parentheses :)